Display screen with a graphical user interface



The sole FIGURE is a front view of the display screen with a graphical user interface.

The outermost broken lines showing an electronic device depict the environment of the claimed design and form no part of the claimed design. The remaining broken lines illustrate a display screen and portions of the graphical user interface that form no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 